JP2593018B2 - Double body coil unwinder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil unwinding apparatus for shortening an entrance-side line stop time and a length of an entrance-side loop when two coils are switched in a continuous strip line.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4 (a), two coil unwinders (pay-off reels) are installed in a cold rolling / process line for the purpose of high efficiency, and one unwinder is used. In another pass line in the board, the other one performs threading work up to the welder pass line and stands by, so that the input side line stop at the time of coil switching in the continuous strip line can be stopped in a short time. , The entry loop length is shortened. However, the distance between the unwinding shaft and the welder needs to be about 20 m.

As shown in Japanese Patent Application Laid-Open No. 60-97155 in FIG. 4B, there is an apparatus using a carousel reel having two unwinding shafts instead of the two payoff reels. It is the same in that the pass lines after the payoff reel are two-stage and the pass lines between the reels dedicated to No. 1 and No. 2 unwinding shafts and the welders are provided.
Further, the distance between the reel and the welder required about 17 m.

[0004]

As described above, when a two-stage pass line is formed between the reel and the welder and the leading end of the strip is processed between the reel and the welder, the distance between the reel and the welder becomes longer and the following problem occurs. Problems arise.

[0005] Dispersion of operation and monitoring points due to a long line length to the welder passing plate. Instability of the threading tip due to the welder being far away. Poor maintainability due to the upper and lower pass lines. Further, in the case of a double-barrel type reel, in a design corresponding to an appropriate reeling distance, the upper and lower passes between the upper pass and the lower pass become narrower (about 3 m). There is a problem that installation is difficult. At the time of unwinding coil extraction work, there is a problem that the tip of the upper pass side falls to the lower pass side. Line length from reel to welder (about 17-20
m) becomes longer and the two-stage pass increases, so that the equipment cost increases.

[0006]

Means for Solving the Problems The present invention is configured as follows in order to solve such problems.

[0007] mosquitoes Roselle reel with two of the unwinding axis
In the coil unwinding device used, the tip processing for cropping process of co-yl tip counterclockwise line side of the mosquito Roselle reel
Device provided (2), the line side of the mosquito Roselle reel provided pin <br/> Nchiroru (15), the delivery side nearest the pinch rolls, the upper clamp (6), medium clamp (7), and A lower clamp (8), the upper clamp (6) and the middle clamp (8).
(7) to clamp the leading end of the following material,
(7) and the lower clamp (8) clamp the tail end of the preceding material.
To be able to retract outside the line
The clamp device (19) on the welder entrance side is provided.

[0008]

A carousel reel having two unwinding shafts and a crop shear provided on the opposite side of the carousel reel for performing a cropping process at the tip of the coil are provided. By using the unwinding shaft on the line side for passing the plate for cropping and coil tip payout, the cropping of the coil end by the unwinding shaft on the opposite line side during the passing by the unwinding shaft on the line side. Processing can be performed.
For this reason, it becomes possible to arrange a welder immediately near the reel exit side.

A pinch roll provided on the exit side of the carousel reel line, and an upper clamp, a middle clamp, and a lower clamp immediately adjacent to the exit side of the pinch roll, and a clamp on the welder entrance side capable of retreating outside the line. Since the welding device was installed, welding was completed in the welder and the following strip that had passed between the upper clamp and the middle clamp was retracted during the passing of the clamping device, the middle clamp was raised, and the line was re-lined. Insertion into allows the passage to be changed between the lower and middle clamps. For this reason,
The pass from the reel to the welder can be made into one pass.

According to the present invention, the leading end of the following material always enters from above the middle clamp of the entry side clamping device, and after the welding is completed, the threading line can be changed to below the middle clamp so that continuous threading is possible. Become.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of the present invention.

FIG. 1 shows an embodiment of the present invention.
It is a side view which shows the structure of the whole machine. FIG. 2 is a schematic view of an operation procedure, and FIG. 3 is an explanatory view showing an operation procedure of the clamp device.

Hereinafter, a method of continuously unwinding the coil 1 inserted into the carousel reel having two unwinding shafts in one pass will be described.

The coil 1 is inserted by the coil car 14 at the position of the unwinding shaft on the side opposite to the line. The upper and lower snubbers 11 and 12 hold the outer periphery of the coil, rotate the unwinding shaft 13 clockwise, insert the leading end of the strip into the leading end processing device 2 while inching, and perform cropping out of the off-gauge by the crop shear 3. In addition to the crop shear, a roller leveler 4 is installed in the tip processing device as needed to correct the shape of the tip end portion. This state is shown in FIG.

Next, the unwinding shaft 13 of the coil 1 is rotated to the left, and the leading end of the strip is attracted to a leading end conveying device, for example, a magnet conveyor as shown in FIG. After that, it is transported to the welder entry side clamp device 19 after the deflector pinch roll 15 by the magnet conveyor, clamped by the upper clamp 6 and the middle clamp 7 of the entry side clamp device, and stands by in that state. This state is shown in FIG.

When the leading coil 1 'unwinding on the delivery side unwinding shaft 13' completes unwinding, the leading coil is removed by the lower clamp 8 and the middle clamp 6 of the input side clamping device, Clamping is performed by the device 20, and the cutting of the leading material 24 and the cutting of the tip of the following material 25 are simultaneously performed by a shear installed in the welder. Thereafter, the crop at the tail end of the preceding material 24 is paid out by the delivery-side magnet conveyor 16 provided below the line, and is subjected to crop processing. The cut of the leading material and the tip of the following material are cropped out to the lower part of the welder shear. Thereafter, the leading end of the following material is wrapped around the tail end of the preceding material, and welded with the welder 10. Then, the entrance-side and exit-side clamp devices are released, and the entrance-side clamp device is retracted out of the line again. When retracted, the middle clamp 15 is raised, and the entrance clamp is inserted into the line again. Thus, the leading end of the following material passes under the middle clamp 15. This state is shown in FIG.

Next, the two unwinding shafts are revolved 180 ° in the direction shown in FIG. 2 (d) to unwind the coil on the opposite side of the line while moving the coil to the line side to replace the coil. Before the orbital motion, the strip is pressed down with a pinch roll. This state is shown in FIG. In this state, the unline-side unwinding shaft is in the coil insertion state, and the subsequent operation is as described above.

Next, the operation procedure of the clamp device will be described in detail with reference to FIG.

The clamper of the welder comprises an inlet clamp 19 and an outlet clamp 20. The outlet clamp has conventional upper and lower clamps 9, 21 and is always in the line.

The input side clamping device is different from the conventional one,
It has three middle, lower clamps 6, 7, and 8, with the upper and middle clamps clamping the leading end of the following material, and the lower and middle clamps clamping the preceding material.
Then, the clamp device 19 on the entry side is capable of retreating laterally out of the line, so that after the following material has been welded, what has passed through the upper portion of the middle clamp can pass through the lower portion of the middle clamp. I made it.

First, (a) shows that while the preceding material 24 is passing between the lower clamp 8 and the middle clamp 7, the following material 25 is inserted into the entrance-side clamp device 19, and the middle clamp 7 is lifted. This is a state in which the tip of the row material 25 is clamped.

Next, the line is stopped in (b), the upper and lower clamps are lowered on the entrance-side clamp device 19, the preceding material is also clamped by the lower and middle clamps, and the upper clamp 9 is also lowered on the exit side. Clamp the leading material. After that, the tip of the trailing material is cut by the shear 23 attached to the welder,
Simultaneously cut the preceding material. The cut crop is dropped down and cropped out.

In (c), the lower clamp 8 on the entry side is lowered to pull out the tail end of the preceding material 24 and crop out to the reel side. Then, the leading end of the following material 25 is clamped by the middle clamp on the entry side, moved to the welding portion, overlapped on the following material, and welded by a welder.

After welding, the middle clamp 7 on the entrance side is lowered, and the upper clamp 9 on the exit side is raised to start the strip passing. At the same time , as shown in (d), the entrance-side clamp device 19 is traversed out of the line , and then the middle clamp 7 is raised to bring the entrance-side clamp device 19 into the state of (e) and return to the line. And let the following strip pass. At this time, the strip passes under the middle clamp. As described above, the operation procedure of (a), (b), (c), and (d) is repeated, and the leading end of the following material passes above the middle clamp before welding and passes below the middle clamp after welding. To do.

[0025]

As described above, according to the coil unwinding device of the present invention, it is possible to reduce the distance between the reel and the welder (from 17 m to 6 m) by making the entrance side passing path one pass and reducing the following. Has a remarkable effect.

By making the entry-side passing plate pass one pass, the line maintenance performance is greatly improved. Equipment costs are reduced due to a significant reduction in civil and construction costs associated with shortening the line length. The operation and monitoring points are concentrated, which not only improves operability, but also greatly improves the reliability of the leading end of the steel plate. In addition, this makes it possible to perform fully automatic entry-side sheet passing, thereby reducing the number of operators.

[Brief description of the drawings]

FIG. 1 is a side view showing a double-barrel unwinder showing one embodiment of the present invention.

FIG. 2 is an explanatory view of an operation procedure of coil unwinding according to the present invention.

FIG. 3 is an explanatory diagram showing an operation procedure of a welder entrance side clamp of the present invention.

FIGS. 4A and 4B are layout diagrams of a conventional unwinder. FIG. 4A shows a single-barrel unwinder, and FIG. 4B shows a double-barrel unwinder (carousel reel). Indicates what was.

[Explanation of symbols]

 Primary material coil (following coil) 1 Leading coil 2 Tip processing device 3 Crop shear 4 Roller leveler 5 Magnet conveyor 6 Inlet upper clamp 7 Inlet middle clamp 8 Inlet lower clamp 9 Outlet upper clamp 10 Welder 11 Lower Snubber 12 Upper snubber 13 Non-line side unwinding shaft 13 Line side unwinding shaft 14 Coil car 15 Deflector pinch roll 16 Outlet magnet conveyor 17 Double cut shear 18 Double pinch roll 19 Inlet clamp device 20 Outlet clamp device 21 Outlet lower Clamp 22 Welding head 23 Welder shear 24 Leading material (leading strip) 25 Trailing material (leading strip) 26 Carousel reel 27 Pinch roll leveler

Claims (1)

(57) [Claims] [Claim 1] In the coil unwinding device using a mosquito Roselle reel having two unwinding shaft, performs the cropping process of co-yl tip counterclockwise line side of the mosquito Roselle reel tip
Processing unit (2) provided on the line side of the mosquito Roselle reel
Provided pin Nchiroru (15), the delivery side nearest the pinch rolls, the upper clamp (6) consists of the middle clamp (7), and the lower clamp (8), said upper clamp (6) and middle click
The leading end of the following material is clamped with the ramp (7),
Clamp the tail end of the preceding material with the pump (7) and the lower clamp (8).
It is constructed so that it can be evacuated outside the line without ramping.
A double-barreled coil unwinder, characterized in that a clamp device (19) on the welder entrance side is provided.